Meteorologists called for the worst storm to hit the Monterey Peninsula in over a year. Jimmy Walker didn't believe the predictions.

"I don't know what the weather is going to do, you just don't know," Walker said on Friday after taking the lead at the AT&T Pebble Beach National Pro-Am. "I don't think the weatherman knows what's going on, honestly."

The wind was strong enough to suspend play for 2 hours and 20 minutes on Saturday, but the heavy rain never showed up. Walker did show up, however. Nobody had a better day than the 35-year-old from San Antonio. He shot a 4-under 67 at the Shore Course at Monterey Peninsula Country Club on Saturday to pull out to a 6-shot lead heading into the tournament's final round.

"It felt good," Walker said. "It played really tough. When you made the turn on 9 coming back and playing about five or six in a row in the wind, it was really stout."

Not bad for the first 54-hole lead in his PGA Tour career. Walker only has one bogey through three rounds, and it came as the wind was gusting right before play was suspended on the fifth hole. He didn't blame it on the wind and took responsibility for the lone lapse on his otherwise stellar day.

He said he had a good lie about 40 yards out. Because it was really windy and it was fast running to the green, "I tried to hit this little kind of chip shot out of the bunker and I caught it fat and left it in the bunker," Walker said. "The next one I blasted out to the front of the green and two-putted. So that was my fault."

Walker said he can't recall ever having a 6-shot lead, even going back to his junior golf days.

"Honestly, I can't think of anything," he said.

He hasn't had many PGA Tour leads at all. Up until the Frys.com Open at CordeValle in San Martin to open up the season in October, Walker had never won a PGA Tour event. He won again in January at the Sony Open in Honolulu. Now he's looking at his third victory this season.

His lead is the largest after 54 holes at Pebble Beach since 2005 when Phil Mickelson led by seven and finished by winning by four.

"It still feels pretty new. I'm excited to be here and be in this position," Walker said. "This is where you play golf and you work hard to get into these kinds of situations."

If anybody has a chance to catch Walker, it is Hunter Mahan. He rallied back from four strokes back at the Phoenix Open in 2010 and he sounded confident about his chances on Sunday.

"There's some good holes where you can be aggressive and take some chances and it's a great course to play," Mahan said about Pebble Beach. "It's really fun, a lot can happen on it, so I think I'll have a chance tomorrow. I just got to play really good tomorrow."

Walker said inclement weather magnifies every move on the course, for every player. Of course, that was after once again emphasizing that you can't predict the weather.

"It sure makes it dicey," he said. "It makes it dicey for everybody."

The forecast for Sunday calls for an 80 percent chance of rain, with wind up to 15 mph and showers gradually becoming a steady rain later in the day. But you just don't know.

"It's going to be tough for everybody to go out and play golf tomorrow if the weather is like this," Walker said.